add EAAF module for authentication method based on Security-Layer 2.0 communication

1 files changed, 46 insertions, 0 deletions

diff --git a/eaaf_modules/eaaf_module_auth_sl20/src/main/java/at/gv/egiz/eaaf/modules/auth/sl20/utils/SL20HttpBindingUtils.java b/eaaf_modules/eaaf_module_auth_sl20/src/main/java/at/gv/egiz/eaaf/modules/auth/sl20/utils/SL20HttpBindingUtils.java
new file mode 100644
index 00000000..78edf640
--- /dev/null
+++ b/eaaf_modules/eaaf_module_auth_sl20/src/main/java/at/gv/egiz/eaaf/modules/auth/sl20/utils/SL20HttpBindingUtils.java
@@ -0,0 +1,46 @@
+package at.gv.egiz.eaaf.modules.auth.sl20.utils;
+
+import java.io.IOException;
+import java.io.StringWriter;
+import java.net.URISyntaxException;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.http.client.utils.URIBuilder;
+import org.apache.http.entity.ContentType;
+import org.jose4j.base64url.Base64Url;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.fasterxml.jackson.databind.JsonNode;
+
+public class SL20HttpBindingUtils {
+	private static final Logger log = LoggerFactory.getLogger(SL20HttpBindingUtils.class);
+	
+	public static void writeIntoResponse(HttpServletRequest request, HttpServletResponse response, JsonNode sl20Forward, String redirectURL) throws IOException, URISyntaxException {
+		//forward SL2.0 command
+		if (request.getHeader(SL20Constants.HTTP_HEADER_SL20_CLIENT_TYPE) != null && 
+				request.getHeader(SL20Constants.HTTP_HEADER_SL20_CLIENT_TYPE).equals(SL20Constants.HTTP_HEADER_VALUE_NATIVE)) {
+			log.debug("Client request containts 'native client' header ... ");												
+			StringWriter writer = new StringWriter();
+			writer.write(sl20Forward.toString());						
+			final byte[] content = writer.toString().getBytes("UTF-8");
+			response.setStatus(HttpServletResponse.SC_OK);
+			response.setContentLength(content.length);
+			response.setContentType(ContentType.APPLICATION_JSON.toString());						
+			response.getOutputStream().write(content);
+											
+		} else {
+			log.debug("Client request containts is no native client ... ");
+			URIBuilder clientRedirectURI = new URIBuilder(redirectURL);
+			clientRedirectURI.addParameter(
+					SL20Constants.PARAM_SL20_REQ_COMMAND_PARAM, 
+					Base64Url.encode(sl20Forward.toString().getBytes()));
+			response.setStatus(307);
+			response.setHeader("Location", clientRedirectURI.build().toString());
+			
+		}
+		
+	}
+}